1. Both DHA and erythrulose have been known to cause contact dermatitis. 2. Erythrulose is more expensive, and difficult to obtain.3. DHA may be used alone or combined with other tanning components such as erythrulose . 4. Erythrulose is a clear to pale-yellowish liquid, which naturally occurs in red raspberries.5. Erythrulose produces a lighter and slower-developing tan, taking 24 to 48 hours to complete development.6. Individuals sensitive to DHA may be able to use erythrulose as a skin-safe self-tanning replacement. 7. In the article about Erythrulose , it is mentioned that it is not FDDA approved as a self-tanning agent. 8. DHA produced similar results, but faster; however erythrulose takes longer to develop its full effect, therefore it lasts longer. 9. Some people feel the final tone of erythrulose is slightly redder, and less bronze, than the DHA-based tan. 10. The ketotetroses have one chiral center and, therefore, two possible stereoisomers : erythrulose ( L-and D-form ).
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